Filter.



NITED STATES PATENT OFFrc.

\VALTER G. WUICHET, OF DAYTON, OHIO, ASSIGN OR TO THE PASTEUR-CHAMBERLAND FILTER COMPANY, OF SAME PLACE.

FILTER.

SPECIFICATION forming part of Letters Patent No. 654,77 5, dated July 31, 1900. Application filed November 2a, 1899. sent! No. vsaooof (NomotleL) To all whom it may concern:

Be'it known that I, WALTER G; WUIOHET, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Filters, of which thefollowing is a specification.

My invention relates to improvements in filters, and it especiallyrelates to that class of filters which employ a reservoir to receive theoverfiow from the filtering-chamber proper,

and particularly to filters operating under the Systeme Pasteur,although it may be used in connection with other filters.

The object of my invention is to improve and simplify the constructionof the reservoir in connection with the float-valve therein whichcontrols the supply of water thereto.

My invention consists in'the constructions and combinations of partshereinafter described and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a filterembodying my invention. Fig. 2 is a vertical sectional view of the same.Fig. 3 is a view of the under side of the reservoir-cover. Fig. 4 is adetail of the valve between the reservoir and filtering-chamber.

Like parts are represented by similar letters of reference in theseveral views.

In the said drawings, a represents an outer cylindrical casing in whichare located the filtering media a, which consists in this case of tubesof the well-known Pasteur type,

although any suitable filtering medium may be employed. These tubes aresupported at their upper ends ina diaphragm a and are adapted todischarge into an intermediate chamber 6, which chamber is adapted to bescrewed into the upper open end of the casing a. The water or otherliquid to be filtered is admitted to the casing a at a under pressure,and after filtering through the filtertubes 01/ is discharged into thechamber 1), from which it may be drawn by means of the faucet b. I

In order that a supply of filtered water may be kept on hand to meet therequirements, it is usual to provide a reserve reservoir 0 above theintermediate chamber into which the filof said flange being adapted tosnugly fit'the outer periphery of the reservoir 0, but free to movethereon. Connected to the under side of the cover is a rim d which rimis provided with a bottom portion d formed with an opening (1 atitscenter, thus forming a chamber d air-tight, except for the opening inthe bottom thereof. Connected to the center portion of the cover d andextending down into the reservoir for a distance slightly" below theopening 61 is a hollow guide d through which the valve-connecting rod 0passes, the'end of said rod being extended through the cover and a nut cseoured thereto, which nut is inclosed by a cap 0 screwed into the coverat this point, which is screw-threaded for that purpose, thus firmlysecuring the said rod to the cover by a connection which will beair-tight at the point thereof within the chamber (1. The float, whichconsists of the cover and walls and bottom of the chamber (1 ispreferably constructed of light sheet metal and the parts solderedtogether.

In operation, the water after having filled the intermediate chamberbwillenter through the passage into the reservoir 0 until it reaches theopening d of the float-chamber d, when any further rise in the waterfrom this point will tend to compress the air in the floatchamber, thusgradually raising the 'fioat d, which, through the medium of the rod 0will close the valve 0, and thus shut ofi the supply of water to thereservoir. As the water is drawn from the intermediate chamber the valvewill open, thus allowing the water from the reservoir to escape into theintermediate chamber.

By this construction it will be seen that I am enabled to dispense witha separate float and also withan air-valve, the air being permitted toescape and enter at the point between the flange on the cover and thereservoir.

By the form of connection employed between the cover and valve the covercan be readily removed for cleaning or repairs.

Having thus described my invention, 1'

claim 1. In a filter, a reservoir connected thereto, a valve betweensaid filter and reservoir, and a float connected to said valve, saidfloat being adapted to extend over the top of said reservoir and form acover therefor, substantially as specified.

2. In a filter, a reservoir connected thereto, and a valve between thefilter and reservoir, a cover for said reservoir formed with a chamberon its under side, the bottom of said chamber being provided with anopening, and a connection from said cover to the valve, substantially'as specified.

3. In a filter, areservoir connected thereto,

and a valve between said filter and reservoir, a cover for saidreservoir provided with a chamber on its under side having an opening inthe bottom thereof, a hollow rod or guide extending from said coverthrough said ehainher to a point below said opening, and a connectionfrom said valve to said cover extending through said hollow rod orguide, substantially as specified.

In testimony whereof I have hereunto set WALTER e. WUIOHET.

my hand this 13th day of November, A. D. 0

